CVE-2026-7838

UltraVNC viewer up to 1.8.2.2 is affected by an integer overflow leading to a heap buffer overflow in the RFB failure-response parsing path. In vncviewer/ClientConnection.cpp, the 4-byte reasonLen field is used as reasonLen+1 in CheckBufferSize(); with unsigned 32-bit operands, reasonLen 0xFFFFFF...

dotnet: X509 Certificates - Validation Bypass across Azure

A security feature bypass vulnerability exists when Microsoft .NET Framework-based applications use X.509 chain building APIs but do not completely validate the X.509 certificate due to a logic flaw. An attacker could present an arbitrary untrusted certificate with malformed signatures, triggerin...

CVE-2021-40493

Zoho ManageEngine OpManager before 125437 is vulnerable to SQL Injection in the support diagnostics module. This occurs via the pollingObject parameter of the getDataCollectionFailureReason API...